Top-rated water heater repair or service pros.

Get matched with top water heater repair or service pros in Barnhart, MO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Water heater repair or service pros in Barnhart

Avatar for Dunn Heating Air Conditioning and Plumbing
Dunn Heating Air Conditioning and Plumbing
4.7(
273
)

Serving Barnhart, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I needed to replace my parents' 40 year old AC Condenser and coil, and replace it with something that worked with the new furnace my father got installed four years prior. They were able to do the work requested, and also offered to redo the furance installation as the previous company installed it right on the basement floor where any backup/water could possibly get into the system. They were very prompt and showed up on time/on schedule. They were very upfront about costs and pricing and there were no last-minute price changes or hidden fees, which I appreciate. Work was done well and they ensured that everything worked before leaving the job site. The gentlemen working were very professional and understanding. I highly recommend them for anyone looking to replace their HVAC or to correct work that was previously poorly done."
Additional Photos
Response time2 days
28 neighbors recently requested a quote
Recommended by90%of homeowners
Master Remodel & Construction
4.7(
18
)

Serving Barnhart, MO and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: Quick response

"Jacob and Cody have been amazing to work with. We originally hired them to repair our stairs and have since contracted with them to install our kitchen tile floor, install electric in our kitchen island and to repair some of our drywall. Their team is very professional, their estimates are accurate and they do quality work. We plan to hire them again when we remodel our bathrooms."
Car port
Car port
Car port
Bathroom remodel
Bathroom remodel

+11

Response time2 hrs
Recommended by100%of homeowners
Avatar for Winnovation Plumbing and Drain
Winnovation Plumbing and Drain
5.0(
5
)

Serving Barnhart, MO and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Winnovations Plumbing is a local, family-owned plumbing company proudly rooted in St. Louis. For more than a decade, we’ve been the neighborhood plumbers you can trust, built on a family legacy of quality craftsmanship and dedicated service.\n‍\nOur history began with a simple mission: to carry on a tradition of reliable plumbing work inspired by our founder’s father, an experienced plumber. Today, we remain committed to helping our community with honest solutions for every job, whether a small repair or a larger project. \n‍\nWe are more than just a plumbing service we’re part of the fabric of St. Louis. We support local families, focus on clear communication, and treat every home with respect and care. Plumbing issues can be stressful, so we emphasize transparency, timely service, and building long-term relationships with our customers.

Water heater install
Shower Valve replacement
Shower Valve replacement
Stack replacement!
Stack replacement!

+3

3 neighbors recently requested a quote
Avatar for Vitt Heating & Air Conditioning Co Inc
Vitt Heating & Air Conditioning Co Inc
4.7(
161
)

Serving Barnhart, MO and surrounding areas

In business since 1954

Free estimates

Emergency services offered

"It went well under the circumstances. I found out that day, that my water had been turned off without my knowledge by America Water, which made it impossible to hose down and clean the outdoors unit. They did their part so I was satisfied. It would have been outstanding if they were willing to come back out to complete the cleaning when water was turned back on, for a perhaps half the price ($49.99). They would only come back out for $89.99."
Military Discounts (retired & active)
Senior Citizen Discounts
Residential HVAC
Multifamily & Commercial Installation & Maintenance
Professionally Installed Ducts

+6

Response time3 days
Response rate100%
Recommended by91%of homeowners
Avatar for Mayo Plumbing Co
Mayo Plumbing Co
4.8(
481
)

Serving Barnhart, MO and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Great! I called Mayo as a new customer (my former plumber had retired). John called me after office hours from his cell phone before he had even returned to his office and had a chance to review my request; we discussed my situation and he said he would work me into his schedule. They kept in touch and updated expected arrival time. When John arrived, he was very personable, professional and efficient; he even leak-checked fittings for furnace and water heater, in addition to the new fitting he installed for the dryer. I like small family-owned businesses and would hire them again in a minute!"
Additional Photos
Additional Photos
1
2
3

+3

Recommended by96%of homeowners
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.8(
37
)

Serving Barnhart, MO and surrounding areas

In business since 1993

Free estimates

Small jobs welcome

"I had to shut off the water to my house so I needed fast service. Within about a two hour time frame they arrived, took care of my issue and I was able to turn my water back on!"
Gas Water Heater
Short Water Heater
Gas Water Heater
Electric Water Heater
Under Sink

+3

Response time7 hrs
Response rate97%
Recommended by97%of homeowners
Avatar for JONES AIR & WATER
JONES AIR & WATER
5.0(
8
)

Serving Barnhart, MO and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"We had Jones Air & Water come out to install filtration and replace a catalytic core system that we had installed to prevent descaling. In our situation, we had a high volume of Chlorine in the water that you could definitely smell and taste. The catalytic core system, didn't live up to the expectations and we still had to deal with a heavy scale build up noticeable on all of our faucets and with two Rinnai units for on demand hot water that raised concerns about what type of build up we were having on what we couldn't see. Everett came out and was very thorough in testing the water and then explaining a recommended solution. We finally decided on a dual media tank solution that Everett and JD installed that provides us with an efficient way to not only handle the Chlorine issue, but truly conditions the water and we're noticing all of the differences that Everett explained we should see. We are very satisfied with the whole process from the review of what our situation is, the recommended solution, the installation and the end result. We highly recommend using Everett for a water treatment solution."
Recommended by100%of homeowners
Showing 1-10 of 47
FAQs for water heater repair or service projects in Barnhart, MO

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Barnhart, MO homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.